The 2018 Money in the Bank was the ninth annual Money in the Bank professional wrestling pay-per-view (PPV) and livestreaming event produced by WWE. It was held for wrestlers from the promotion's Raw and SmackDown brand divisions. The event took place on June 17, 2018, at the Allstate Arena in the Chicago suburb of Rosemont, Illinois, and was the second Money in the Bank held at this venue after the 2011 event.

Eleven matches were contested at the event, including one on the Kickoff pre-show. In the main event, Raw's Braun Strowman won the men's Money in the Bank ladder match. The women's ladder match was won by Raw's Alexa Bliss, who later that night cashed in her contract to win the Raw Women's Championship from Nia Jax after causing a disqualification in the previous title match between Ronda Rousey and Jax. In other prominent matches, AJ Styles retained SmackDown's WWE Championship against Shinsuke Nakamura in a Last Man Standing match, and Carmella defeated Asuka to retain the SmackDown Women's Championship.

Critics gave the event a mixed-to-positive reception; the ladder matches, WWE Championship, Raw Women's Championship, and the Intercontinental Championship matches garnered the most praise. The remaining matches from the card, however—including Bobby Lashley vs. Sami Zayn and Roman Reigns vs. Jinder Mahal—were negatively received.